Hy-Gain AV-14AVQ Instruction Manual Download Page 1 | Manualshive

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Hy-Gain AV-14AVQ Instruction Manual Download Page 1

308 Industrial Park Road

Starkville, MS 39759 USA

Ph:

(662) 323-9538 FAX: (662) 323-6551

M o d e l A V - 1 4 A V Q

Four Bands Vertical Antenna

10, 15, 20, 40 Meter

INSTRUCTION MANUAL

General Description

Theory of Operation

The Hy-Gain 14AVQ/WB-S is an omnidirec-
tional, self-supporting, vertical radiator that
operates in the 10, 15, 20, and 40 meter
amateur bands. The system will work against
earth ground or a resonant radial system when
mounted above ground. You can make your
own radial system following the manual, or
use the Hy-Gain 14RMQ Radial System Kit
available at your Hy-Gain dealer.

The antenna can be used for either Phone or
CW with either a ground or roof mount. It can
also be tuned to mid-band for use with either
Phone or CW. In either case, the SWR band
widths of the antenna are broad enough that
the antenna will operate at an SWR of 2:1 or
less from 10 to 40 meters. The 14AVQ/WB-S
is supplied with stainless steel hardware and
element clamps for all electrical and most
mechanical connections.

The use of heavy duty "Hy-Q Traps" provides
automatic band selection. The Hy-Q Traps
are parallel resonant circuits which isolate
the various sections of the antenna and give
quarter wavelength resonance on all bands.
The top hat enhances the broad-band
characteristics of the antenna and permits the
antenna to be shortened by top loading it.

WARNING

When installing your system, take'
extreme' care t o   avoid any accidental
contact with'' power l i n e s   or overhead
obstructions. F a i l u r e   to exercise this
care could result in serious or fatal
i n j u r y .

FOR OUR OVERSEAS CUSTOMERS: The
United States used English units of measure-
ments. Please see page 12 of this manual for
assistance in identifying the hardware and
components supplied with this product.

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Summary of Contents for AV-14AVQ

Page 1: ...a are broad enough that the antenna will operate at an SWR of 2 1 or less from 10 to 40 meters The 14AVQ WB S is supplied with stainless steel hardware and element clamps for all electrical and most mechanical connections The use of heavy duty Hy Q Traps provides automatic band selection The Hy Q Traps are parallel resonant circuits which isolate the various sections of the antenna and give quarte...

Page 2: ...r out Since the 14AVQ WB S is a multi band vertical antenna the radial system should be optimized on the lowest frequency you plan to use Higher frequencies will benefit equally from the ground system while lower frequencies will not show as much improvement To determine the optimum radial installation for your 14AVQ WB S you must first decide what is the limiting factor for your installation For ...

Page 3: ...ring Report entitled Amateur Phasing included with this product Before you begin read the instructions and study the illustrations Compare the parts against the Parts List Decide where to mount your antenna rooftop or ground and what mode of transmission you will use Phone CW or Mid Band Take spe cial notice of the dimensions in Figure 1 The SWR charts will help you decide which dimensions to choo...

Page 4: ...Figure 1 Antenna Assembly Dimensions ...

Page 5: ...the clamp near the tube end with the top of the clamp over the slot in the tube as shown in Figure 2 After adjustment of the tubing lengths tighten the clamp with a 5 16 inch nut driver socket or open end wrench until the tubing will not twist or telescope DO NOT over tighten Figure 2 Tubing Clamps ...

Page 6: ...M1 and tighten it just enough to keep the M2 from skipping It will be fully tightened later 20 Meter Trap and M4 Section Assembly Assemble these two parts like you did the M3 and the 15 meter trap Use two more 10 tubing clamps the 1 x 6 1 2 long M4 section Item No 9 and the 20 meter trap Item No 15 10 Meter Trap Put an untightened 10 Tubing clamp Item No 17 over the M2 section then slip the 10 met...

Page 7: ...ach the three radial wires on the M5 section Tighten securely Bolt hex 10 24 x 1 Item No 20 1 Flatwashers 10 Item No 22 4 Lockwasher internal 10 Item No 21 1 Figure 4 Mounting Assembly First mount the completed antenna on your mast not supplied as shown in Figure 4 Use the two U bolts 5 16 nuts and 5 16 lock washers Items Nos 29 31 and 30 Recheck all dimensions Tighten all of the compression clamp...

Page 8: ...m must be added for proper operation The radial system can serve to guy the system if insulators are used at the proper lengths shown This system must be grounded for lightning protection Connect a ground wire to one U bolt on the antenna base and run it to a buried 8 foot 250 cm ground rod by the shortest route If you are ground mounting your antenna in stall it as shown in Figure 4 You must inst...

Page 9: ...SURED FROM BASE TO INSULATOR PREFERRED SYSTEM Item No Description 24 Bolt hex head 1 3 20 x 3 4 26 Lockwasher internal 1 4 27 Nut hex 1 4 20 ALTERNATE SYSTEM ALL RADIALS 33 10 058 m FROM BOLT TO INSULATOR Figure 5 Guying Details ...

Page 10: ... 10 meters make a VSWR curve checking the low end center and high end of the band This will indicate if the antenna favors the low end or the high end as installed 1 The antenna operates progressively from 10 thru 40 meters Even though you may not be using 10 meters at the present time 10 meters must be adjusted because any adjustment made between the base and the first trap automatically changes ...

Page 11: ...nding upon the model involved 6 Most verticals are monopole antennas or half of a dipole For this reason the soil conditions when the antenna is ground mounted are important as it makes up the other half of the antenna When you roof mount the antenna radials must be used as outlined in the assembly instructions to provide the other half of the antenna Lightning Protection For maximum lightning pro...

Page 12: ...Trap Cap 7 8 x 15 8 1 13 461466 Trap Spacer 4 15 877129 Trap 20 Meter 1 12 464723 Trap Cap 7 811 x 15 8 1 13 461466 Trap Spacer 4 872013 Parts Pack 385S Stainless Steel 1 16 358756 Clamp Tubing No 6 1 17 358757 Clamp Tubing No 10 5 18 358758 Clamp Tubing No 16 1 19 455624 Caplug 1 8 diameter 3 20 504069 Bolt hex head 10 24 x 1 1 21 565697 Lockwasher internal 10 3 22 561165 Flatwasher 10 4 23 55569...

Page 13: ...g English Measurement to Metric Use this scale to identify lengths of bolts diameters of tubes etc The English inch and foot can be converted to centimeters in this way 1 inch 1 2 54 cm 1 foot 1 30 48 cm Example ...

Page 14: ...required for the 24 feet high self supporting tower The top mast extends the height to 50 feet Two units make an ideal phased array MODEL 18AVT WB S The 18AVT WB S is a multi band trap vertical for 10 through 80 meters It is completely fac tory pre tuned and exhibits an extremely low angle DX radiation pattern It is easy to as semble light weight which one man can install A single 50 ohm coaxial f...

Page 15: ...nown for its low angle characteristics When you combine two identical verticals properly spaced and phased the resultant is a concentrated low angle of energy and a power gain These antennas can be so arranged to give a definite effect on either one or two favorite bands or all band coverage with some pattern compromise and slight loss of gain The following data was experimentally derived on the T...

Page 16: ...rrangements offer an excellent ad vantage over a single vertical since either phasing combination exhibits noticeable signal gain with side attenuation of undesired signals This added gain and low angle vertical directivity is the advantage of the phased array ENDFIRE GAIN 23 dB Phased verticals may be spaced either one quarter wave or one half wave depending upon gain and directional characterist...

Page 17: ...KHz Design Frequency SPECFICATIONS Broadside End Fire Pattern width half power points 60 degrees 80 degrees Gain over single vertical 3 86 dB 2 3 dB Side attenuation 30 dB 20 dB Impedance 50 Ohms 50 Ohms Directional characteristics Bi Directional Bi Directional ...

Page 18: ...s out of phase with a spacing of 1 4 wave length a cardioid pattern results This pattern may be switched in either direction By inserting a 1 4 wave length delay line the antenna will fire or be directive to that particular element TWO VERTICALS Figure 3 Cardioid Unidirectional With Two Selectable Directions ...

Page 19: ... pattern for two 1 4 wave length verticals will be approximately 120 degrees An arrangement of three switchable verticals gives a 60 degree pattern in six selectable directions Figure 4 360 Cardioid Arrangement ...

Page 20: ... Consideration must be given to the fact that 1 2 wave spacing optional is ideal for phasing When multi banding with close and wide spac ing compromise radiation patterns must be expected In most cases a choice spacing serves 3 bands most effectively with good directional characteristics added gain and low angle per formance ELECTRICAL SPECIFICATIONS VSWR Exceptionally low SWR is present with a ph...

Page 21: ...unications In cases where close and medium distance contacts are hampered by the array s low angle characteris tics and a higher angle is required switching arrangements can select one vertical for this coverage Low loss constant impedance type coaxial switches and connectors should be used when splicing phasing lines B W multi position single or multi gang coaxial switches with Am phenol coaxial ...

Page 22: ...ects Bi Directional patterns Use SW2 for broadside position 1 Endfire position 2 C All switches in position 2 selects cardioid pattern SW4 selects direction of cardioid pattern NOTE All connecting lines are exaggerated in length These lines must be direct and short as with any coax hook up prac tice Figure 5 Typical installation 2 18HT S Phased for 80 and 40 Meters Selectable Broadside and Endfire...

Page 23: ...Note Corralate Patterns to spacing used in installation Figure 6 Radiation Patterns Typical Spacing For Broadside And Endfire Arrangements ...

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